Disconnector Outdoor AC Hv Disconnector

Prod Model:	GW4-40.5 GW4-126 GW4-252 GW4-72.5 GW4-145
Markets:	North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe
Rated Voltage:	12kv-138kv
Material:	Porcelain or Silicone Rubber Housing
Rated Current:	400A/630A/800A/1000A/1250A/2000A
Radio Interference Level:	Less Than 500
Type:	High-voltage
Structure:	Three-column Disconnector
Installation:	Outdoor High-voltage
Operation:	Manual
Series:	Three
Certification:	CE
Grounding:	Without Earthing/Single Earthing/Double Earthing
Common Model:	Gw4

Product Description

GW4 series outdoor AC HV disconnector is three-phase AC 50Hz outdoor HV electric equipment used in rated voltage 35KV electric system. It is used for high voltage lines no-load switching and electrical isolation of examined high voltage bus, circuit breakers and other electrical equipments. 

Characteristics: 

GW4-40.5\GW4-40.5D series disconnector is unipolar, and three separate unipoles are connected together by a connecting rod to form a three-pole single conductive arm, linked disconnector. The connecting rod is composed of left hand and right hand screws, so it is easy to adjust the phase synchronization and also can operate on single-phase. 
GW4-40.5 series disconnector is composed of base, pillar porcelain insulator and conductive components, each pole has two porcelain insulators on both bearing houses of base, and is connected by a crossover connecting rod to be horizontally revolvable. Conductive knife is made of copper tubes; Its contacts are in middle of the two insulators, and the knife is fixed at the top of insulators. 


Brief Description 
GW4 Series disconnector are 3-pole outdoor HV a. C electric devices, including 40.5kV, 72.5kV, 126kV and 145 kV disconnectors, which own 3-pole double-horizontal-break construction, consist of installation base, supporting insulator, rotating insulator, moving contact, fixed contact and earthing switch, etc. 
Main Features 
1 Reasonable structure, excellent performance and reliable service; 
2 Excellent mechanical properties, small operating force, high reliability, long mechanical endurance; 
3 Brilliant anticorrosive capability. 
4 Small circuit resistance and good waterproof performance.
 

Specifications			Unit	Value
Rated voltage			kV	40.5	72.5	126	145
Rated current			A	630/1250/2000	630/1250/2000	1600	1600/2000
Rated frequency			Hz	50/60
Rated short-time withstand current  (r.m.s)			kA	20/25/ 31.5	25/31.5/40	31.5	31.5/40
Rated peak withstand current			kA	50/63/80	63/80/100	80	80/100
1min  power frequency withstand voltage (r.m.s)	To earth/Between phases		kV	70	140	230	275
	Across isolating distance		kV	80	160	265	315
Lightning impulse withstand voltage (peak)		To earth/Between phases	kV	170	325	550	650
		Across isolating distance	kV	195	375	630	750